17x25x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack beneficial microbes oxyCLONE is a simple

oxyCLONE is a simple

The HI9814 Portable GroLine Meter features a replaceable HI1285-7 probe that has been carefully designed specifically for the pH

Perlite is a unique volcanic mineral which expands from four to twenty times its original volume when it is heated

Humboldt Nutrients three-part fertilizer program will produce fantastic yields and premium quality crops

17x25x1 MERV 8 Plus Carbon AC Furnace Filters 6 Pack beneficial microbes oxyCLONE is a simpleNordic Pure Custom MERV 8 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition